<template>
  <div class="app-container">
    <div class="filter">
      <el-row>
        <el-col :span="24">
          <el-input
            style="width: 120px"
            v-model="filter.name"
            placeholder="用户名称"
            @clear="count++"
            @change="count++"
            clearable
          />
          <el-button type="primary" icon="el-icon-search" @click="count++"
            >搜索</el-button
          >
          <el-button type="primary" icon="el-icon-edit" @click="addUser"
            >新增</el-button
          >
        </el-col>
      </el-row>
    </div>
    <br />
    <div class="table" style="margintop: 20px">
      <el-table :data="userArr" size="mini" border style="width: 100%">
        <el-table-column label="序号" type="index" width="80" align="center">
        </el-table-column>
        <el-table-column prop="username" label="用户" align="center" />
        <el-table-column prop="role" label="角色" align="center">
        </el-table-column>
        <el-table-column prop="role_name" align="center" label="角色名称">
        </el-table-column>
        <el-table-column prop="status" align="center" label="状态">
          <template slot-scope="scope">
            <div>{{ scope.row.status ? "正常" : "禁用" }}</div>
          </template>
        </el-table-column>
        <el-table-column prop="handle" align="center" width="240" label="操作">
          <template slot-scope="scope">
            <el-button
              size="mini"
              :disabled="scope.row.role === 'admin'"
              @click="userHandle(scope.row)"
              :type="scope.row.status ? 'danger' : 'primary'"
            >
              {{ scope.row.status ? "禁用" : "启用" }}
            </el-button>
          </template>
        </el-table-column>
      </el-table>
    </div>
    <br />
    <div class="page" style="margintop: 60px">
      <el-pagination
        @size-change="sizeChange"
        @current-change="pageChange"
        :current-page="filter.page"
        :page-sizes="[2, 5, 10, 20]"
        :page-size="filter.size"
        layout="total, sizes, prev, pager, next, jumper"
        background
        :total="total"
      >
      </el-pagination>
    </div>

    <!-- 添加用户的弹框 -->
    <el-dialog title="添加用户" :visible.sync="show">
      <el-row>
        <el-col :span="4">用户名:</el-col>
        <el-col :span="10">
          <el-input v-model="userForm.username" />
        </el-col>
      </el-row>
      <br />
      <el-row>
        <el-col :span="4">角色:</el-col>
        <el-col :span="10">
          <el-select v-model="userForm.role" placeholder="请选择角色">
            <el-option
              v-for="item in roleArr"
              :key="item._id"
              :label="item.role_name"
              :value="item.role"
            />
          </el-select>
        </el-col>
      </el-row>
      <div slot="footer" class="dialog-footer">
        <el-button @click="show = false">取 消</el-button>
        <el-button type="primary" @click="submitUser">确 定</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
export default {
  name: "UserManage",
  data() {
    return {
      count: 0,
      filter: {
        name: "",
        page: 1,
        size: 2,
      },
      userArr: [],
      total: 0,
      userForm: {
        username: "",
        role: "",
      },
      show: false,
      roleArr: [],
    };
  },
  created() {
    this.init(this.filter);
    this.$api.fetchRoleList().then((res) => (this.roleArr = res.list));
  },
  activated() {
    this.init(this.filter);
  },
  watch: {
    count() {
      const filter = this.copy(this.filter);
      filter.page = 1;
      this.filter = filter;
      this.init(filter);
    },
  },
  methods: {
    init(params) {
      this.$api.fetchUserList(params).then((res) => {
        console.log("用户列表", res);
        this.userArr = res.list;
        this.total = res.total;
      });
    },
    copy(target) {
      return JSON.parse(JSON.stringify(target));
    },
    sizeChange(val) {
      const filter = this.copy(this.filter);
      filter.page = 1;
      filter.size = val;
      this.filter = filter;
      this.init(filter);
    },
    pageChange(val) {
      const filter = this.copy(this.filter);
      filter.page = val;
      this.filter = filter;
      this.init(filter);
    },
    // 打开添加用户的弹框
    addUser() {
      this.userForm = { username: "", role: "" };
      this.show = true;
    },
    // 添加用户
    submitUser() {
      console.log("提交", this.userForm);
      const params = {
        ...this.userForm,
        role_name: this.roleArr.find((ele) => ele.role === this.userForm.role)
          .role_name,
      };
      // 表单验证，表单验证成功
      this.$api.fetchUserAdd(params).then(() => {
        this.init(this.filter);
        this.show = false;
      });
    },
    // 启用或启用
    userHandle(row) {
      const params = {
        id: row._id,
        status: (row.status + 1) % 2,
      };
      this.$api.fetchUserUpd(params).then(() => this.init(this.filter));
    },
  },
};
</script>

<style>
</style>